We had to wait half an hour _____ we had already booked a table.
| A．since | B．although | C．until | D．before |
The interview he paid little attention to _____ him the chance to work in this company.
| A．being cost | B．be cost | C．costing | D．cost |
On a _____ morning the little girl was found _____ at the corner of the street.
| A．freezing; freezing | B．freezing; frozen | C．frozen; frozen | D．frozen; freezing |
We had to _________ the engine piece by piece for transport.
| A．take up | B．take out | C．take off | D．take apart |
The little boy was in danger. The doctors and nurses are doing him.
| A．what they can do help | B．everything they can help |
| C．what they can to help | D．all what to help |